13results about How to "Avoid stress response" patented technology

The utility model relates to a freshwater fish breeding technical field, and the utility model discloses a multi-angle adjustable freshwater live fish photographing device, the isolation frame is fixedly arranged in the transparent water tank, a plurality of baffle plates are arranged in the isolation frame, rotating rods are fixedly arranged on the upper and lower sides of the baffle plate, the lifting mesh plate is movably arranged in the transparent water tank and is located at the left side position of the isolation frame, two threaded rods are rotatably arranged on the lifting mesh plate through screw threads, the lower end of the threaded rod is rotatably inserted on the inner bottom wall of the transparent water tank through the bearing, the connecting frame is fixedly arranged on the left side of the upper portion of the transparent water tank, the driving rod is rotatably arranged in the connecting frame through the bearing, the upper end of the threaded rod is rotatably inserted in the connecting frame through screw threads and is drivenly connected with the driving rod through the bevel gear pair, the motor is fixedly arranged on the front side wall of the connecting frame, the camera is fixedly arranged on the three-axis electric pan-tilt head, the activity range of fish can be limited, the fish need not be frequently fished out to cause the stress reaction, and the fish can also be prevented from swimming randomly to be difficult to capture the clear photo.

The utility model discloses a perch out-of-season breeding temperature control device which comprises an impounding reservoir and a fishpond arranged on one side of the impounding reservoir, a controller is installed on the outer surface of the impounding reservoir, and an automatic water storage structure used for pumping underground water into the impounding reservoir to keep the water level of the impounding reservoir is arranged on the impounding reservoir. By means of the automatic water storage structure and the water treatment assembly, low-temperature underground water can be automatically pumped into the water storage pool, oxygenation and aeration can be conducted on the pumped underground water, escape of nitrogen and carbon dioxide in water is accelerated, and the weever can be effectively prevented from suffering from the bubble disease; the water temperature in the fishpond can be monitored, once the temperature is too high, low-temperature underground water is automatically injected into the fishpond, the water temperature in the fishpond is reduced to be within the range suitable for growth of perches, meanwhile, through the mild water temperature adjusting mode, rapid change of the water temperature is avoided, the perches can gradually adapt to the water temperature change, and the perches can grow more conveniently. And stress reaction caused by sudden drop of water temperature is avoided.

The application belongs to the technical field of biological gene engineering, and discloses a lactococcus lactis carrier oral vaccine for producing enterotoxigenic escherichia coli F18 pilus type and application. Four lactococcus lactis antigen surface display strains are prepared, and are mixed to perform oral immunization. The oral immunization mode is convenient to operate, avoids the stress reaction caused by injection immunization on animals, and greatly improves the immunization effect, so that the diarrhea caused by enterotoxigenic escherichia coli on piglets can be effectively prevented. 50 The application is an oral escherichia coli vaccine, and mouse immunization challenge experiment shows that all the mice can survive under the challenge dose of LD , and piglet immunization challenge experiment shows that the piglets can be 100% protected from diarrhea, which shows that the immunization group has effective mucosal immune protection ability.

The utility model relates to a double -cavity formula vaginal examination appearance, include: monitoring part, spray gun and biopsy forceps three parts. Monitoring part includes support rod and camera device, and support rod has operating end and monitoring end, and is along its axial direction and is designed with the operating channel and wire harness channel who penetrates both ends and is independent of each other, and camera device installs in wire harness channel monitoring end's port position, and spray gun and biopsy forceps are set up in operating channel in activity. The utility model passes through the operating channel and wire harness channel of independent of each other, solves the technical problem that traditional vaginal examination appearance is single and lacks stable support.

The utility model provides a kind of automatic salinity balancing device for seawater ornamental fish culture, belong to aquaculture technical field, including support seat, the support seat outer wall slidingly connected with glass culture box, the glass culture box outer wall is fixedly connected with overflow pipe, the support seat outer wall is fixedly connected with recessed frame, the recessed frame top wall is fixedly connected with support frame, further include: stirring subassembly, the stirring subassembly includes fixedly connected with the mixing bucket of support frame outer wall, the mixing bucket top wall is fixedly connected with drive motor A, the drive motor A output end is fixedly connected with rotating rod, and the rotating rod is rotatably connected with mixing bucket, the rotating rod outer wall is fixedly connected with evenly distributed stirring rod. In the utility model, by setting the stirring rod and inclined plate cooperation in stirring subassembly, can make salt and water fast, evenly mix, avoid local salt concentration too high, prevent causing harm to fish.

The utility model provides a breeding house internal ventilation device for livestock breeding, which belongs to the technical field of breeding house ventilation and comprises a breeding house. The multiple first ventilation pipes are fixedly connected to the upper end of the breeding house through bolts; the second ventilation pipes are fixedly connected to the lower inner wall of the breeding house through bolts; a plurality of mounting grooves; a plurality of heaters; a plurality of vent holes; a plurality of shunt pipes; a plurality of T-shaped pipes; a plurality of ventilation windows; a PLC (programmable logic controller); according to the device, when the interior of the breeding house needs to be ventilated in cold seasons, fresh air entering the breeding house is preheated through matched use of the heater and the PLC, the livestock stress reaction possibly caused by the fact that cold air directly enters the breeding house is avoided, the design is beneficial for maintaining the proper temperature and humidity environment in the breeding house, and the breeding house is convenient to use. The disease risk caused by temperature fluctuation is reduced, so that the healthy growth of livestock is promoted, and the production performance is improved.

The utility model relates to the technical field of livestock breeding equipment, concretely to a device of cattle stable weighing, including base and four door columns, the top of base is connected with door column fixedly, the top of base is provided with the weighter, both sides of base all are connected with the inclined plate fixedly, and a plurality of railings are fixedly connected between every two far away door columns, the utility model drives the gear to rotate through the drive motor in the fixed block, since the gear is engaged with the rack plate, when the gear rotates then will drive the rack plate to move to the inside of weighing equipment, when the rack plate moves to the inside of weighing equipment will drive the baffle to move synchronously, since having two baffles, and the baffle is opposite setting, when two baffles all move to the inside of weighing equipment will contact each other, and the advancing route of cattle is blocked, thereby making cattle movable space reduce, and thereby reducing the activity range and frequency of cattle, and thereby increasing the precision of weighing.

The utility model provides a kind of lumen flow regulator and coronary sinus constriction device. Lumen flow regulator includes layer net structure, and layer net structure forms lumen passage along axial extension, and lumen passage includes first expansion part, narrowing part and second expansion part connected in turn, and the inner diameter of first expansion part and second expansion part is all greater than the inner diameter of narrowing part, wherein, narrowing part includes main body section and transition section located at both ends of main body section, two transition sections are connected with first expansion part and second expansion part respectively, and the mesh size of transition section is greater than the mesh size of main body section and the mesh size of first expansion part and second expansion part. The utility model solves the problem of poor postoperative adaptability of lumen flow regulator in the prior art.

The invention discloses an intelligent environment regulation and control system and method based on the Internet of Things, and relates to the technical field of intelligent environment regulation and control, and the system comprises a visual monitoring unit, a market decision-making unit, an environment monitoring unit, and a dynamic strategy generation unit. According to the method, the residual growth time window is dynamically adjusted through the price pre-estimation model, high-metabolism growth acceleration or low-metabolism maintenance strategies are intelligently switched, a user is helped to preempt a high-price window or avoid risks at low cost, passive breeding is converted into active commercial decision, meanwhile, machine vision is used for replacing manual measurement, the stress reaction generated by snails due to touch is avoided, and the user experience is improved. Meanwhile, real-time accurate control over the growth progress deviation is achieved, the thin shell disease can be effectively prevented by adopting a specific repairability strategy, the limitation of traditional constant environment control is broken through, and accurate control over the marketing time is achieved while the finished product quality is guaranteed.

This invention discloses a denitrification process for preparing sweet white wine. The process steps are as follows: Grape pretreatment: Select fresh white grapes of uniform ripeness, manually remove rotten and diseased grapes, destem, crush, and extract juice using a press. Collect the juice and filter to remove pomace to obtain initial grape juice; Juice clarification: Quickly cool the initial grape juice to 3-5°C, add 30-35 mg / L pectinase and 40-60 mg / L sulfur dioxide, stir evenly, and let it stand for clarification for 24-36 hours. Take the supernatant as the fermentation liquid; Primary denitrification fermentation: Transfer the fermentation liquid to a fermentation tank, raise the temperature to 12-15°C, inoculate with wine yeast, control the fermentation temperature at 16-18°C, and stir 2-3 times a day; When the alcohol content of the fermentation liquid reaches 3.5% vol, add 0.4-0.5 g / L of chitosan-benzene complex. This invention's staged denitrification avoids the yeast stress response caused by adding a large amount of adsorbent at once, and significantly enhances the microbial stability of the wine.

This invention provides extracellular vesicle miRNAs from milk for detecting heat stress in dairy cows and their applications, belonging to the field of dairy cow health technology. This invention, through the isolation, extraction, and miRNA sequencing of extracellular vesicles derived from dairy cow milk, discovered specific miRNA molecules closely related to heat stress. Using the miRNA unconservative_3_49980 from these extracellular vesicles as a biomarker, this invention provides a simple, non-invasive, and stress-free method for detecting heat stress in dairy cows with high sensitivity. This invention also designs specific primer pairs for the miRNA, enabling the construction of a kit for early, non-invasive assessment of heat stress in dairy cows.

The invention discloses a horse-derived anaerobic strain for improving athletic ability as well as a screening method and application thereof, and relates to the field of microorganisms. The invention discloses a horse-derived anaerobic strain capable of improving athletic ability, which is preserved in China General Microbiological Culture Collection Center, the preservation address is No.3, No.1 yard, Beichen West Road, Chaoyang District, Beijing, the preservation date is September 19, 2023, and the preservation number is CGMCC No.28469. The horse-derived anaerobic strain is classified and named as Enterococcus faecalis. The invention also discloses a screening method and application of the horse-derived anaerobic strain. The horse-derived anaerobic strain for improving the athletic ability, the screening method and the application have important guiding significance on development of probiotics of racing horses and additives of microbial feeds.

This invention discloses a broiler chicken farming transport vehicle, including a transport vehicle with a cargo box installed at the rear. The cargo box contains a compartment, and a rear frame is installed at the end of the compartment. An even number of doors are installed within the rear frame. Several sets of arch rod fixing seats are installed on both sides of the rear frame. An upper protective frame is fixed above the rear frame. Plated arch rod groups are fixed to the several sets of arch rod fixing seats, and arch rods are installed at both ends of each plated arch rod group. This invention controls the hydraulic rods of a hydraulic tank installed above the top of the waste guide platform. When loading broiler chicken turnover boxes, the second box platform can be driven to swing, causing the platform frame to tilt downwards. At this time, the turnover boxes can sequentially engage between the left and right clamping plates on both sides of the support plate. Following the drive motor within the second fixed rotating shaft, the turnover boxes on the support plate and the left and right clamping plates are displaced to complete the loading and reset process. This design can greatly reduce manual labor intensity, improve loading and unloading efficiency, and avoid stress reactions during the stacking of turnover boxes.